Method, apparatus and system for transmitting periodic uplink information/signals

ABSTRACT

Provided are a periodic uplink information/signal transmission method, apparatus and system. The method includes that: a terminal receives configuration signaling transmitted by an access network device, the configuration signaling containing a configuration parameter of periodic uplink information/signal; and the terminal determines a target transmission unit according to the configuration parameter, and transmits or cancels target periodic uplink information/signal according to the number of an uplink symbol in the target transmission unit.

CROSS REFERENCE

This application is a U.S. national stage of PCT Application No.PCT/CN2017/081304, filed on Apr. 20, 2017 entitled METHOD, APPARATUS ANDSYSTEM FOR TRANSMITTING PERIODIC UPLINK INFORMATION/SIGNALS, thecontents of which are hereby incorporated by reference in theirentirety.

TECHNICAL FIELD

Embodiments of the disclosure relate to the field of communication, andmore particularly to a method, apparatus and system for transmittingperiodic uplink information/signals.

BACKGROUND

Uplink information includes Channel State Information (CSI) and/orsemi-persistent scheduling uplink data, and uplink signals includechannel Sounding Reference Signals (SRSs). CSI refers to CSI of anuplink channel transmitted to a base station by a terminal, and isconfigured to indicate a channel state of the uplink channel of theterminal. According to different manners for triggering reporting, CSIhas two types: periodic CSI and aperiodic CSI. Descriptions will be madebelow only with the condition that uplink information/signal includesperiodic CSI as an example.

In a Long Term Evolution (LTE) system, a process that a terminaltransmits periodic CSI to a base station roughly includes the followingoperations: the base station transmits a Channel State InformationReference Signal (CSI-RS) to the terminal; and correspondingly, theterminal measures CSI of an uplink channel according to the receivedCSI-RS and transmits the CSI to the base station through an uplinkresource in the uplink channel according to a predetermined period.

SUMMARY

The embodiments of the disclosure provide a method, apparatus and systemfor transmitting periodic uplink information/signal. The followingtechnical solutions are adopted.

According to a first aspect of the disclosure, a method for transmittingperiodic uplink information/signal is provided, which may include thefollowing operations.

Configuration signaling transmitted by an access network device isreceived, the configuration signaling containing a configurationparameter of periodic uplink information/signal.

A target transmission unit is determined according to the configurationparameter.

Target periodic uplink information/signal is transmitted or cancelledaccording to the number of an uplink symbol in the target transmissionunit.

In an optional implementation, the periodic uplink information/signalmay include:

periodic CSI; or,

a periodic SRS; or,

semi-persistent scheduling uplink data.

In another optional implementation, the configuration parameter mayinclude at least one of: a transmission period, an offset, a CSIfeedback mode, a transmission mode, or a Physical (PHY) resourceindication.

In another optional implementation, the operation that the targetperiodic uplink information/signal is transmitted or cancelled accordingto the number of the uplink symbol in the target transmission unit mayinclude the following operations:

when the target transmission unit is a normal uplink subframe or anormal uplink slot, the target periodic uplink information/signal istransmitted in the target transmission unit according to theconfiguration parameter; or,

when the number of the uplink symbol in the target transmission unit ismore than or equal to a first threshold, the target periodic uplinkinformation/signal is transmitted in the target transmission unitaccording to the configuration parameter.

In another optional implementation, the operation that the targetperiodic uplink information/signal is transmitted or cancelled accordingto the number of the uplink symbol in the target transmission unit mayinclude the following operations:

when the target transmission unit includes no uplink symbol, the targetperiodic uplink information/signal is cancelled; or,

when the number of the uplink symbol in the target transmission unit islarger than 0 and smaller than a second threshold, the target periodicuplink information/signal is cancelled.

In another optional implementation, the operation that the targetperiodic uplink information/signal is transmitted or cancelled accordingto the number of the uplink symbol in the target transmission unit mayinclude the following operations:

when the target transmission unit includes no uplink symbol, a firstfirst-type transmission unit within a preset period after or from thetarget transmission unit is determined, and the target periodic uplinkinformation/signal is transmitted through at least one uplink symbol inthe first first-type transmission unit according to the configurationparameter; or,

when the number of the uplink symbol in the target transmission unit islarger than 0 and smaller than a third threshold, the first first-typetransmission unit within the preset period from or after the targettransmission unit is determined, and the target periodic uplinkinformation/signal is transmitted through at least one uplink symbol ofthe first first-type transmission unit according to the configurationparameter.

In another optional implementation, the first-type transmission unit mayinclude any one of: a normal uplink subframe, a normal uplink slot, atransmission unit of which an uplink symbol quantity is larger than afourth threshold, or a transmission unit of which an uplink symbolquantity is equal to the fourth threshold.

In another optional implementation, the operation that the targetperiodic uplink information/signal is transmitted or cancelled accordingto the number of the uplink symbol in the target transmission unit mayinclude the following operations:

when the number of the uplink symbol in the target transmission unit islarger than 0 and smaller than a fifth threshold, an information subsetof the target periodic uplink information/signal is transmitted throughat least one uplink symbol in the target transmission unit according tothe configuration parameter.

In another optional implementation, when the periodic uplinkinformation/signal includes periodic CSI, the information subset mayinclude at least one of the following sub information:

CSI-RS Resource Indicator (CRI) information;

Rank Indicator (RI) information;

wideband Channel Quality Indicator (CQI) information;

wideband Pre-coding Matrix Indicator (PMI) information; or

first PMI information.

In another optional implementation, the operation that the targetperiodic uplink information/signal is transmitted or cancelled accordingto the number of the uplink symbol in the target transmission unit mayinclude the following operations:

a time-frequency resource for transmitting the target periodic uplinkinformation/signal is determined according to the configurationparameter and the number of the uplink symbol in the target transmissionunit; and

the target periodic uplink information/signal is transmitted on thetime-frequency resource according to the configuration parameter.

In another optional implementation, the operation that the targetperiodic uplink information/signal is transmitted or cancelled accordingto the number of the uplink symbol in the target transmission unit mayinclude the following operations:

a time-frequency resource for transmitting the target periodic uplinkinformation/signal is determined according to configuration informationand the number of an uplink symbol in the first first-type transmissionunit; and

the target periodic uplink information/signal is transmitted on thetime-frequency resource according to the configuration parameter.

According to a second aspect of the disclosure, a periodic uplinkinformation/signal transmission method is provided, which may includethe following operations:

configuration signaling is transmitted to a terminal, the configurationsignaling containing a configuration parameter of periodic uplinkinformation/signal;

a target transmission unit is determined according to the configurationparameter; and

target periodic uplink information/signal is received or not receivedaccording to the number of an uplink symbol in the target transmissionunit.

In an optional implementation, the periodic uplink information/signalmay include:

periodic CSI; or,

an SRS; or,

semi-persistent scheduling uplink data.

In another optional implementation, the configuration parameter mayinclude at least one of: a transmission period, an offset, a CSIfeedback mode, a transmission mode or a physical resource indication.

In another optional implementation, the operation that the targetperiodic uplink information/signal is received or not received accordingto the number of the uplink symbol in the target transmission unit mayinclude the following operations:

when the target transmission unit is a normal uplink subframe or anormal uplink slot, the target periodic uplink information/signaltransmitted by the terminal in the target transmission unit according tothe configuration parameter is received; or,

when the number of the uplink symbol in the target transmission unit ismore than or equal to a first threshold, the target periodic uplinkinformation/signal transmitted in the target transmission unit accordingto the configuration parameter is received.

In another optional implementation, the operation that the targetperiodic uplink information/signal is received or not received accordingto the number of the uplink symbol in the target transmission unit mayinclude the following operations:

when the target transmission unit includes no uplink symbol, the targetperiodic uplink information/signal is not received; or,

when the number of the uplink symbol in the target transmission unit islarger than 0 and smaller than a second threshold, the target periodicuplink information/signal is not received.

In another optional implementation, the operation that the targetperiodic uplink information/signal is received or not received accordingto the number of the uplink symbol in the target transmission unit mayinclude the following operations:

when the target transmission unit includes no uplink symbol, a firstfirst-type transmission unit within a preset period after or from thetarget transmission unit is determined, and the target periodic uplinkinformation/signal transmitted by the terminal through at least oneuplink symbol in the first first-type transmission unit according to theconfiguration parameter is received; or,

when the number of the uplink symbol in the target transmission unit islarger than 0 and smaller than a third threshold, a first first-typetransmission unit within a preset period after or from the targettransmission unit is determined, and the target periodic uplinkinformation/signal transmitted by the terminal through at least oneuplink symbol in the first first-type transmission unit according to theconfiguration parameter is received.

In another optional implementation, the first-type transmission unit mayinclude any one of: a normal uplink subframe, a normal uplink slot, atransmission unit of which an uplink symbol quantity is larger than afourth threshold, or a transmission unit of which an uplink symbolquantity is equal to the fourth threshold.

In another optional implementation, the operation that the targetperiodic uplink information/signal is received or not received accordingto the number of the uplink symbol in the target transmission unit mayinclude the following operations:

when the number of the uplink symbol in the target transmission unit islarger than 0 and smaller than a fifth threshold, an information subsetof the target periodic uplink information/signal transmitted by theterminal through at least one uplink symbol in the target transmissionunit according to the configuration parameter is received.

In another optional implementation, when the periodic uplinkinformation/signal includes periodic CSI, the information subset mayinclude at least one of the following sub information:

CRI information;

RI information;

wideband CQI information;

wideband PMI information; or

first PMI information.

In another optional implementation, the operation that the targetperiodic uplink information/signal is received or not received accordingto the number of the uplink symbol in the target transmission unit mayinclude the following operations:

a time-frequency resource for transmitting the target periodic uplinkinformation/signal is determined according to the configurationparameter and the number of the uplink symbol in the target transmissionunit; and

the target periodic uplink information/signal transmitted by theterminal on the time-frequency resource according to the configurationparameter is received.

In another optional implementation, the operation that the targetperiodic uplink information/signal is received or not received accordingto the number of the uplink symbol in the target transmission unit mayinclude the following operations:

a time-frequency resource for transmitting the target periodic uplinkinformation/signal is determined according to configuration informationand the number of an uplink symbol in the first first-type transmissionunit;

the target periodic uplink information/signal transmitted by theterminal on the time-frequency resource according to the configurationparameter is received.

According to a third aspect of the disclosure, an apparatus fortransmitting periodic uplink information/signal is provided, whichincludes at least one unit, the at least one unit being configured toimplement the periodic uplink information/signal transmission methodprovided in the first aspect or any optional implementation in the firstaspect.

According to a fourth aspect of the disclosure, an apparatus fortransmitting periodic uplink information/signal is provided, whichincludes at least one unit, the at least one unit being configured toimplement the periodic uplink information/signal transmission methodprovided in the second aspect or any optional implementation in thesecond aspect.

According to a fifth aspect of the disclosure, a terminal is provided,which includes a processor, a memory, a transmitter and a receiver.

The memory is configured to store one or more than one instruction, theinstruction being instructed to be executed by the processor.

The processor is configured to receive, through the receiver,configuration signaling transmitted by an access network device, theconfiguration signaling containing a configuration parameter of periodicuplink information/signal.

The processor is further configured to determine a target transmissionunit according to the configuration parameter.

The processor is further configured to transmit or cancel, through thetransmitter, target periodic uplink information/signal according to thenumber of an uplink symbol in the target transmission unit.

In an optional implementation, the processor is further configured to:

when the target transmission unit is a normal uplink subframe or anormal uplink slot, transmit, through the transmitter, the targetperiodic uplink information/signal in the target transmission unitaccording to the configuration parameter; or,

when the number of the uplink symbol in the target transmission unit ismore than or equal to a first threshold, transmit, through thetransmitter, the target periodic uplink information/signal in the targettransmission unit according to the configuration parameter.

In another optional implementation, the processor is further configuredto:

when the target transmission unit includes no uplink symbol, cancel,through the transmitter, the target periodic uplink information/signal;or,

when the number of the uplink symbol in the target transmission unit islarger than 0 and smaller than a second threshold, cancel, through thetransmitter, the target periodic uplink information/signal.

In another optional implementation, the processor is further configuredto:

when the target transmission unit includes no uplink symbol, determine afirst first-type transmission unit within a preset period after or fromthe target transmission unit and transmit, through the transmitter, thetarget periodic uplink information/signal through at least one uplinksymbol in the first first-type transmission unit according to theconfiguration parameter; or,

when the number of the uplink symbol in the target transmission unit islarger than 0 and smaller than a third threshold, determine the firstfirst-type transmission unit within the preset period from or after thetarget transmission unit and transmit, through the transmitter, thetarget periodic uplink information/signal through at least one uplinksymbol of the first first-type transmission unit according to theconfiguration parameter.

In another optional implementation, the processor is further configuredto:

when the number of the uplink symbol in the target transmission unit islarger than 0 and smaller than a fifth threshold, transmit, through thetransmitter, an information subset of the target periodic uplinkinformation/signal through at least one uplink symbol in the targettransmission unit according to the configuration parameter.

In another optional implementation, the processor is further configuredto:

determine a time-frequency resource for transmitting the target periodicuplink information/signal according to the configuration parameter andthe number of the uplink symbol in the target transmission unit.

send, through the transmitter, the target periodic uplinkinformation/signal on the time-frequency resource according to theconfiguration parameter.

In another optional implementation, the processor is further configuredto:

determine the time-frequency resource for transmitting the targetperiodic uplink information/signal according to configurationinformation and the number of an uplink symbol in the first first-typetransmission unit.

send, through the transmitter, the target periodic uplinkinformation/signal on the time-frequency resource according to theconfiguration parameter.

According to a sixth aspect of the disclosure, an access network deviceis provided, which includes a processor, a memory, a transmitter and areceiver.

The memory is configured to store one or more than one instruction, theinstruction being instructed to be executed by the processor.

The processor is configured to transmit, through the transmitter,configuration signaling to a terminal, the configuration signalingcontaining a configuration parameter of periodic uplinkinformation/signal.

The processor is further configured to determine a target transmissionunit according to the configuration parameter.

The processor is further configured to receive or not receive, throughthe receiver, target periodic uplink information/signal according to thenumber of an uplink symbol in the target transmission unit.

In an optional implementation, the processor is further configured to:

when the target transmission unit is a normal uplink subframe or anormal uplink slot, receive, through the receiver, the target periodicuplink information/signal transmitted by the terminal in the targettransmission unit according to the configuration parameter; or,

when the number of the uplink symbol in the target transmission unit ismore than or equal to a first threshold, receive, through the receiver,the target periodic uplink information/signal transmitted in the targettransmission unit according to the configuration parameter.

In another optional implementation, the processor is further configuredto:

when the target transmission unit includes no uplink symbol, notreceive, through the receiver, the target periodic uplinkinformation/signal; or,

when the number of the uplink symbol in the target transmission unit islarger than 0 and smaller than a second threshold, not receive, throughthe receiver, the target periodic uplink information/signal.

In another optional implementation, the processor is further configuredto:

when the target transmission unit includes no uplink symbol, determine afirst first-type transmission unit within a preset period after or fromthe target transmission unit and receive, through the receiver, thetarget periodic uplink information/signal transmitted by the terminalthrough at least one uplink symbol in the first first-type transmissionunit according to the configuration parameter; or,

when the number of the uplink symbol in the target transmission unit islarger than 0 and smaller than a third threshold, determine a firstfirst-type transmission unit within a preset period after or from thetarget transmission unit and receive, through the receiver, the targetperiodic uplink information/signal transmitted by the terminal throughat least one uplink symbol in the first first-type transmission unitaccording to the configuration parameter.

In another optional implementation, the processor is further configuredto:

when the number of the uplink symbol in the target transmission unit islarger than 0 and smaller than a fifth threshold, receive, through thereceiver, an information subset of the target periodic uplinkinformation/signal transmitted by the terminal through at least oneuplink symbol in the target transmission unit according to theconfiguration parameter.

In another optional implementation, the processor is further configuredto:

determine a time-frequency resource for transmitting the target periodicuplink information/signal according to the configuration parameter andthe number of the uplink symbol in the target transmission unit.

receive, through the receiver, the target periodic uplinkinformation/signal transmitted by the terminal on the time-frequencyresource according to the configuration parameter.

In another optional implementation, the processor is further configuredto:

determine a time-frequency resource for transmitting the target periodicuplink information/signal according to configuration information and thenumber of an uplink symbol in the first first-type transmission unit.

receive, through the receiver, the target periodic uplinkinformation/signal transmitted by the terminal on the time-frequencyresource according to the configuration parameter.

According to a seventh aspect of the disclosure, a computer-readablemedium is provided, which stores one or more than one instruction, theinstruction being configured to implement the periodic uplinkinformation/signal transmission method provided in the first aspect orany optional implementation in the first aspect.

According to an eighth aspect of the disclosure, a computer-readablemedium is provided, which stores one or more than one instruction, theinstruction being configured to implement the periodic uplinkinformation/signal transmission method provided in the second aspect orany optional implementation in the second aspect.

According to a ninth aspect of the disclosure, a periodic uplinkinformation/signal transmission system is provided, which includes aterminal and an access network device, the terminal including theperiodic uplink information/signal transmission apparatus provided inthe third aspect or any optional implementation in the third aspect andthe access network device including the periodic uplinkinformation/signal transmission apparatus provided in the fourth aspector any optional implementation in the fourth aspect.

According to a tenth aspect of the disclosure, a periodic uplinkinformation/signal transmission system is provided, which includes aterminal and an access network device, the terminal being the terminalprovided in the fifth aspect or any optional implementation in the fifthaspect and the access network device being the access network deviceprovided in the sixth aspect or any optional implementation in the sixthaspect.

The technical solutions provided in the embodiments of the disclosurehave the following beneficial effects.

A terminal receives configuration signaling transmitted by an accessnetwork device, determines a target transmission unit according to theconfiguration parameter in the configuration signaling and transmits orcancels the target periodic uplink information/signal according to thenumber of the uplink symbol in the target transmission unit. In such amanner, when the transmission unit configured to transmit the targetperiodic uplink information/signal has a dynamically changing framestructure, the terminal may determine whether to transmit or cancel thetarget periodic uplink information/signal according to the number of theuplink symbol in the target transmission unit, and responsive todetermining that the target periodic uplink information/signal isrequired to be sent, selects a transmission manner for the targetperiodic uplink information/signal and transmits the target periodicuplink information/signal according to the transmission manner.Therefore, a probability that the terminal effectively feeds back theperiodic uplink information/signal is improved.

BRIEF DESCRIPTION OF DRAWINGS

In order to describe the technical solutions of the embodiments of thedisclosure more clearly, the drawings required to be used indescriptions about the embodiments will be simply introduced below. Itis apparent that the drawings described below are only some embodimentsof the disclosure. Other drawings may further be obtained by those ofordinary skill in the art according to these drawings without creativework.

FIG. 1 is a schematic diagram of a frame structure type 2 according tothe related art.

FIG. 2 is a structure diagram of a mobile communication system accordingto an exemplary embodiment of the disclosure.

FIG. 3A is a structure diagram of a terminal according to an exemplaryembodiment of the disclosure.

FIG. 3B is a structure diagram of an access network device according toan exemplary embodiment of the disclosure.

FIG. 4 is a flowchart of a periodic uplink information/signaltransmission method according to an exemplary embodiment of thedisclosure.

FIG. 5 is a schematic diagram of a target transmission unit involved ina first transmission scheme for periodic uplink information/signalaccording to another exemplary embodiment of the disclosure.

FIG. 6 is a schematic diagram of a target transmission unit involved ina second transmission scheme for periodic uplink information/signalaccording to another exemplary embodiment of the disclosure.

FIG. 7 is a schematic diagram of a target transmission unit involved ina fifth transmission scheme for periodic uplink information/signalaccording to another exemplary embodiment of the disclosure.

FIG. 8 is a schematic diagram of a principle involved in a periodicuplink information/signal transmission method according to anotherexemplary embodiment of the disclosure.

FIG. 9 is a structure diagram of a periodic uplink information/signaltransmission apparatus according to an exemplary embodiment of thedisclosure.

FIG. 10 is a structure diagram of a periodic uplink information/signaltransmission apparatus according to another exemplary embodiment of thedisclosure.

DETAILED DESCRIPTION

In order to make the purpose, technical solutions and advantages of thedisclosure clearer, the implementations of the disclosure will furtherbe described below in combination with the drawings in detail.

“First”, “second” and similar words mentioned in the disclosure do notrepresent any sequence, number or significance but are only adopted todistinguish different components. Similarly, “a/an”, “one” or similarwords also do not represent quantity limits but represent existence ofat least one. “Connect”, “mutually connected” or similar words are notlimited to physical or mechanical connection but may include electricalconnection, either direct or indirect.

“Module” mentioned in the disclosure usually refers to a process orinstruction stored in a memory and capable of realizing some functions.“Unit” mentioned in the disclosure usually refers to a functionalstructure which is logically divided. A “unit” may be implementedcompletely by hardware or implemented by a combination of software andthe hardware.

“Multiple” mentioned in the disclosure refers to two or more than two.“And/or” describes an association relationship between associatedobjects and represents that three relationships may exist. For example,A and/or B may represent three conditions: i.e., independent existenceof A, existence of both A and B and independent existence of B.Character “/” usually represents that previous and next associatedobjects form an “or” relationship.

In the related art, the types of the frame structure of LTE/LTE-Advanced(LTE-A) include frame structure type 1 and frame structure type 2. Theframe structure type 1 is configured for full duplex and half duplexFrequency Division Duplex (FDD). The frame structure type 2 isconfigured for Time Division Duplex (TDD).

FIG. 1 is a schematic diagram of the frame structure type 2. A 10 msradio frame consists of two half frames with lengths of 5 ms, each halfframe consists of five subframes with lengths of 1 ms, and the fivesubframes include four ordinary subframes and a special subframe(configured to provide necessary guard time for downlink/uplinkswitching). The ordinary subframe consists of two 0.5 ms slots, and thespecial subframe includes three domains: a Downlink Pilot Time Slot(DwPTS) domain, a Guard Period (GP) domain and an Uplink Pilot Time Slot(UpPTS) domain. An uplink/downlink configuration of the frame structuretype 2 is shown in Table 1, U represents an uplink subframe, Drepresents a downlink subframe and S represents a special subframe.

TABLE 1 Uplink/ Uplink/ downlink downlink switching Subframe numberconfiguration period 0 1 2 3 4 5 6 7 8 9 0 5 ms D S U U U D S U U U 1 5ms D S U U D D S U U D 2 5 ms D S U D D D S U D D 3 10 ms  D S U U U D DD D D 4 10 ms  D S U U D D D D D D 5 10 ms  D S U D D D D D D D 6 5 ms DS U U U D S U U D

Thus it can be seen that a transmission direction (uplink or downlink)of each subframe and the number of uplink resources or the number ofdownlink resources in each subframe in an LTE/LTE-A system are fixed.While in a 5G system, unlike the LTE system where a fixed framestructure is used, a flexibly configured frame structure may be used inthe 5G system.

Optionally, time-frequency resources in the 5G system may be dividedaccording to different Transmission Time Intervals (TTIs). Optionally,the TTIs are 1 ms, 0.5 ms, 0.06 ms and the like. Each TTI may further bedivided according to symbols, symbol groups, slots or subframes. Forexample, a TTI is divided into two slots, a TTI is divided into 14symbols, and a TTI is even divided into four symbols or three symbols ortwo symbols and the like. In a communication system with a flexibleframe structure, an uplink resource or downlink resource in eachsubframe is no longer fixed and a terminal 140 cannot use an uplinkresource pre-configured by an access network device 120 or predeterminedin a protocol to transmit periodic uplink information/signal. Therefore,a transmission manner for periodic uplink information/signal in LTE isno longer suitable for a communication system with a flexible framestructure.

On the basis of such a technical problem, the disclosure provides amethod, apparatus and system for transmitting periodic uplinkinformation/signal. References will be made to the following embodimentsprovided in FIG. 2 to FIG. 8.

First of all, the terms involved in the embodiments of the disclosureare introduced.

1: Periodic uplink information/signal: which refers to uplinkinformation/signal that is transmitted to an access network device by aterminal in an uplink resource according to a predetermined time period.The periodic uplink information may be transmitted over a PhysicalUplink Control Channel (PUCCH), or may be multiplexed with data andtransmitted over a Physical Uplink Shared Channel (PUSCH). The periodicuplink information includes periodic CSI or semi-persistent schedulinguplink data, and the periodic uplink signal includes an SRS.

2: Periodic CSI: which refers to CSI of an uplink channel transmitted toan access network device side by the terminal according to thepredetermined time period, and is configured to indicate a channel stateof the uplink channel of the terminal. Optionally, the periodic CSIincludes at least one of CRI information, RI information, wideband CQIinformation, wideband PMI information and first PMI information.Optionally, the periodic CSI further includes at least one of thefollowing sub information: sub-band CQI information, second PMIinformation and Pre-coding Type Indicator (PTI) information.

3: Target periodic uplink information/signal: which refers to periodicuplink information/signal presently transmitted by a terminal, or,latest periodic uplink information/signal required to be sent.

4: Configuration parameter of periodic uplink information/signal: whichis used to configure information about a periodic uplinkinformation/signal transmission manner, and usually includes at leastone of: a transmission period, an offset, a CSI feedback mode, atransmission mode and a physical resource indication. The transmissionperiod is configured to indicate a time period of transmitting, by theterminal, periodic uplink information/signals to the access networkdevice. The offset is configured to indicate an offset position of atarget transmission unit in a radio frame. The feedback mode isconfigured to indicate a mode type of transmitting, by the terminal, theperiodic CSI to the access network device. The physical resourceindication is configured to indicate at least one of a time-domainresource, frequency-domain resource and code-domain resource of thetarget transmission unit.

5: Target transmission unit: which refers to a transmission unitinitially determined to transmit target periodic uplinkinformation/signal. The target transmission unit is not always finallydetermined to be the transmission unit configured to transmit the targetperiodic uplink information/signal. Optionally, the target transmissionunit may be a subframe or a slot.

6: Uplink symbol quantity: which refers to the amount of an uplinksymbol of the target transmission unit in a time domain. Optionally,when the target transmission unit is a normal uplink subframe or anormal uplink slot, the number of uplink symbols may be 7.

It is to be noted that part of related terms involved in the embodimentsof the disclosure may refer to corresponding related descriptions inChapter 7.2 in TS 36.213 of the 3rd Generation Partnership Project(3GPP) protocol, for example, the periodic CSI, the CRI information, theRI information, the wideband CQI information, the wideband PMIinformation and the first PMI information, and will not be elaboratedherein.

Referring to FIG. 2, a structure diagram of a mobile communicationsystem according to an exemplary embodiment of the disclosure is shown.The mobile communication system may be an LTE system, may also be anLTE-A system, or may further be a 5G system. The 5G system is alsocalled a New Radio (NR) system. There are no limits made thereto in theembodiment. The mobile communication system includes an access networkdevice 120 and a terminal 140.

The access network device 120 may be a base station. The base stationmay be configured to mutually convert a received radio frame and anInternet Protocol (IP) packet message, and may further coordinate theattribute management of an air interface. For example, the base stationmay be an Evolutional Node B (eNB or e-NodeB) in LTE, or, a base stationadopting a central distributed architecture in the 5G system. The accessnetwork device 120, when adopting the central distributed architecture,usually includes a Central Unit (CU) and at least two Distributed Units(DUs). Protocol stacks of a Packet Data Convergence Protocol (PDCP)layer, a Radio Link Control (RLC) layer and a Media Access Control (MAC)layer are arranged in the CU. A physical protocol stack is arranged inthe DU. A specific implementation manner of the access network device120 is not limited in the embodiment of the disclosure. Optionally, theaccess network device may further include a Home eNB (HeNB), a relay, aPico and the like.

The access network device 120 establishes a wireless connection with theterminal 140 through a wireless air interface. Optionally, the wirelessair interface is a 5G-standard-based wireless air interface, forexample, the wireless air interface is NR; or, the wireless airinterface may also be a wireless air interface based on anext-generation mobile communication network technology standard of 5G;or, the wireless air interface may also be a 4th-Generation(4G)-standard (LTE system)-based wireless air interface. The accessnetwork device 120 may receive uplink data transmitted by the terminal140 through the wireless connection.

The terminal 140 may refer to a device that performs data communicationwith the access network device 120. The terminal 140 may communicatewith one or more core networks through a Radio Access Network (RAN). Theterminal 140 may be a mobile terminal, for example, a mobile phone (orcalled a “cell” phone), and a computer with a mobile terminal, which maybe, for example, a portable, pocket, handheld, computer-embedded orvehicle-mounted mobile device, for example, a subscriber unit, asubscriber station, a mobile station, a mobile, a remote station, anaccess point, a remote terminal, an access terminal, a user terminal, auser agent, a user device or User Equipment (UE). Optionally, theterminal 140 may also be a relay device, which will not be limited inthe embodiment. The terminal 140 may transmit the uplink data to theaccess network device 120 through the wireless connection with theaccess network device 120.

Optionally, the access network device 120 transmits configurationsignaling to the terminal 140, the configuration signaling containing aconfiguration parameter of periodic uplink information/signal.Correspondingly, the terminal 140 determines a target transmission unitaccording to the configuration parameter in the received configurationsignaling and transmits or cancels target periodic uplinkinformation/signal according to the number of the uplink symbol in thetarget transmission unit.

It is to be noted that the mobile communication system shown in FIG. 2may include multiple access network devices 120 and/or multipleterminals 140, FIG. 2 shows one access network device 120 and oneterminal 140 for exemplary description but there are no limits madethereto in the embodiment.

Referring to FIG. 3A, a structure diagram of a terminal according to anexemplary embodiment is shown. The terminal may be the terminal 140 inthe mobile communication system shown in FIG. 2. Descriptions are madein the embodiment with the condition that the terminal 140 is UE in anLTE system or a 5G system as an example. The terminal includes aprocessor 21, a receiver 22, a transmitter 23, a memory 24 and a bus 25.

The processor 21 includes one or more than one processing core, and theprocessor 21 runs software programs and modules, thereby executingvarious function applications and information processing.

The receiver 22 and the transmitter 23 may be implemented as acommunication component, the communication component may be acommunication chip, and the communication chip may include a receivingmodule, a transmission module, a modem module and the like, and isconfigured to modulate and/or demodulate information and receive ortransmit the information through a wireless signal.

The memory 24 may be connected with the processor 21 through the bus 25.

The memory 24 may be configured to store the software programs and themodules.

The memory 24 may store an application program module 26 for at leastone function. The application program module 26 may include a receivingmodule 261, a determination module 262 and a Transmitting module 263.

The processor 21 is configured to execute the receiving module 261 torealize a function of a related receiving operation in each methodembodiment. The processor 21 is configured to execute the determinationmodule 262 to realize a function of a related determination operation ineach method embodiment. The processor 21 is configured to execute theTransmitting module 263 to realize a function of a related transmissionoperation in each method embodiment.

In addition, the memory 24 may be implemented by a volatile ornonvolatile storage device of any type or a combination thereof, forexample, a Static Random Access Memory (SRAM), an Electrically ErasableProgrammable Read-Only Memory (EEPROM), an Erasable ProgrammableRead-Only Memory (EPROM), a Programmable Read-Only Memory (PROM), aRead-Only Memory (ROM), a magnetic memory, a flash memory, a magneticdisk or an optical disk.

Referring to FIG. 3B, a structure diagram of an access network deviceaccording to an exemplary embodiment is shown. The access network devicemay be the access network device 120 in the mobile communication systemshown in FIG. 2. Descriptions are made in the embodiment with thecondition that the network 120 is an eNB in an LTE system or a gNB in a5G system as an example. The access network device includes a processor31, a receiver 32, a transmitter 33, a memory 34 and a bus 35.

The processor 31 includes one or more than one processing core, and theprocessor 31 runs software programs and modules, thereby executingvarious function applications and information processing.

The receiver 32 and the transmitter 33 may be implemented as acommunication component, the communication component may be acommunication chip, and the communication chip may include a receivingmodule, a transmission module, a modem module and the like, and isconfigured to modulate and demodulate information and receive ortransmit the information through a wireless signal.

The memory 34 may be connected with the processor 31 through the bus 35.

The memory 34 may be configured to store the software programs and themodules.

The memory 34 may store an application program module 36 for at leastone function. The application program module 36 may include aTransmitting module 361, a determination module 362 and a receivingmodule 363.

The processor 31 is configured to execute the Transmitting module 361 torealize a function of a related transmission operation in each methodembodiment. The processor 31 is configured to execute the determinationmodule 362 to realize a function of a related determination operation ineach method embodiment. The processor 31 is configured to execute thereceiving module 363 to realize a function of a related receivingoperation in each method embodiment.

In addition, the memory 34 may be implemented by a volatile ornonvolatile storage device of any type or a combination thereof, forexample, an SRAM, an EEPROM, an EPROM, a PROM, a ROM, a magnetic memory,a flash memory, a magnetic disk or an optical disk.

Referring to FIG. 4, a flowchart of a periodic uplink information/signaltransmission method according to an exemplary embodiment of thedisclosure is shown. The method is applied to the mobile communicationsystem shown in FIG. 2. The method includes the following operations.

In the operation 401, an access network device determines aconfiguration parameter of periodic uplink information/signal.

For example, periodic uplink information/signal is periodic CSI. Theconfiguration parameter of periodic uplink information/signal determinedby the access network device includes at least one of: a transmissionperiod, an offset, a CSI feedback mode, a transmission mode and aphysical resource indication.

Optionally, the configuration parameter includes at least one ofparameters shown in Table 2, and is not limited to each parameter shownin Table 2. It is to be understood that each parameter in Table 2 has acorresponding serial number and description information, but the serialnumber and the description information are not part of the correspondingparameter, and adding the serial number and the description informationis only for convenient description.

TABLE 2 Serial Configuration number parameter Description information 1Transmission period Time period of transmitting periodic uplinkinformation/signal. The value of the transmission period is any one of2, 5, 10 and 30 ms. The value of the transmission period is not limitedin the embodiment. 2 offset offset of the target transmission unit in aradio frame. For example, the offset “2” is configured to indicate thatthe “second” subframe in a radio frame (including totally 10 subframes,i.e., “zeroth” to “ninth” subframes) is the target transmission unit. 3Transmission mode Including, but not limited to, the nine transmissionmodes shown in Table 3, 4 CSI feedback mode Different feedback modes areadopted for different transmission modes. For example, in thetransmission mode 4 “closed-loop spatial multiplexing”, the feedbackmode includes, but not limited to, the feedback modes shown in Table 4.Feedback methods and contents in other transmission modes are usuallysimplifications of the feedback mode corresponding to the mode 4. 5Physical resource Configured to indicate at least one of a indicationresource in the time domain, a resource in the frequency domain, aresource in the space domain and a code-domain resource. Descriptionsare made in the disclosure only with the condition that the physicalresource indication includes a starting index corresponding to aPhysical Resource Block (PRB) in the frequency domain as an example. 6Duration Duration for resource allocation. For example, second, one-timetriggering or infinitely great is taken as a unit.

TABLE 3 Transmission type Transmission mode Mode 1 Single-antenna portMode 2 Transmit diversity Mode 3 Open-loop spatial multiplexing Mode 4Closed-loop spatial multiplexing Mode 5 Multi-user Multiple InputMultiple Output (MIMO) Mode 6 Codebook-based beamforming Mode 7Single-stream transmission Mode 8 Double-stream transmission Mode 9Multi-stream transmission

TABLE 4 Feedback mode Mode Mode Mode Mode 1-1 2-1 1-0 2-0 FeedbackFeedback (bits/ (bits/ (bits/ (bits/ type content Mode state BP*) BP*)BP*) BP*) 1 Sub-band RI = 1 NA 4 + L NA 4 + L  CQI RI > 1 NA 7 + L NA4 + L¹ 7 + L²  1a Sub-band 8 antenna ports or NA 8 + L NA NA CQI/second8/12/16/20/24/28/32 antenna ports PMI of codebook configuration Config ={2, 3, 4}, RI = 1 8 antenna ports or NA 9 +L NA NA 8/12/16/20/24/28/32antenna ports of codebook configuration Config = {2, 3, 4}, 1 < RI < 5 8antenna ports or NA 7 + L NA NA 8/12/16/20/24/28/32 antenna ports ofcodebook configuration Config = {1, 2, 3, 4}, RI > 4 8/12/16/20/24/28/32antenna ports NA 6 + L NA NA of codebook configuration Config = 1, RI =1 8/12/16/20/24/28/32 antenna ports NA 9 + L NA NA of codebookconfiguration Config = 1, RI = 2 8/12/16/20/24/28/32 antenna ports NA8 + L NA NA of codebook configuration Config = 1, 2 < RI < 5 4 antennaports, RI = 1 NA 8 + L NA NA 4 antenna ports, 1 < RI ≤ 4 NA 9 + L NA NA2 Wideband 2 antenna ports, RI = 1 6 6 NA NA CQI/PMI 4 antenna ports, RI= 1, Note⁵ 8 8 NA NA 2 antenna ports, RI > 1 8 8 NA NA 4 antenna ports,RI > 1, Note⁵ 11 11 NA NA 4 antenna ports, RI = 1, Note⁶ 7 7 NA NA 4antenna ports, RI = 2, Note⁶ 10 10 NA NA 4 antenna ports, RI = 3, Note⁶9 9 NA NA 4 antenna ports, RI = 4, Note⁶ 8 8 NA NA 8 antenna ports, RI =1 8 8 NA NA 8 antenna ports, 1 < RI < 4 11 11 NA NA 8 antenna ports, RI= 4 10 10 NA NA 8 antenna ports, RI > 4 7 7 NA NA  2a First PMI 8antenna ports, RI < 3 NA 4 NA NA 8 antenna ports, 2 < RI < 8 NA 2 NA NA8 antenna ports, RI = 8 NA 0 NA NA 4 antenna ports, 1 ≤ RI ≤ 2 NA 4 NANA 4 antenna ports, 2 ≤ RI ≤ 4 NA NA NA NA 8/12/16/20/24/28/32 antennaports Note³ Note³ NA NA of codebook configuration Config = 1, 1 ≤ RI ≤ 88/12/16/20/24/28/32 antenna ports Note⁴ Note⁴ NA NA of codebookconfiguration Config = {2, 3, 4} 4 antenna ports, 1 ≤ RI ≤ 2 3 NA NA NA4 antenna ports, 3 ≤ RI ≤ 4 0 NA NA NA 8 antenna ports, 1 ≤ RI ≤ 2 6 NANA NA 8 antenna ports, 3 ≤ RI ≤ 4 2 NA NA NA 8 antenna ports, 5 ≤ RI ≤ 80 NA NA NA 8/12/16/20/24/28/32 antenna Note⁷ NA NA NA ports, 1 ≤ RI ≤ 8 2b Wideband 8 antenna ports or 8 8 NA NA CQI/second 8/12/16/20/24/28/32antenna ports PMI of codebook configuration Config = {2, 3, 4}, RI = 1 8antenna ports or 11 11 NA NA 8/12/16/20/24/28/32 antenna ports ofcodebook configuration Config = {2, 3, 4}, 1 < RI < 4 8 antenna ports or10 10 NA NA 8/12/16/20/24/28/32 antenna ports of codebook configurationConfig = {2, 3, 4}, RI = 4 8 antenna ports or 7 7 NA NA8/12/16/20/24/28/32 antenna ports of codebook configuration Config = {1,2, 3, 4}, RI > 4 4 antenna ports, RI = 1 8 8 NA NA 4 antenna ports, 1 <RI ≤ 4 11 11 NA NA 8/12/16/20/24/28/32 antenna ports 6 6 NA NA ofcodebook configuration Config = 1, RI = 1 8/12/16/20/24/28/32 antennaports 9 9 NA NA of codebook configuration Config = 1, RI = 28/12/16/20/24/28/32 antenna ports 8 8 NA NA of codebook configurationConfig = 1, 2 < RI < 5 4/8 antenna ports or 10 NA NA NA8/12/16/20/24/28/32 antenna ports, RI = 1 4/8 antenna ports or 11 NA NANA 8/12/16/20/24/28/32 antenna ports, RI = 2  2c Wideband 8 antennaports, RI = 1 8 NA NA NA CQI/first 8 antenna ports, 1 ≤ RI ≤ 4 11 NA NANA PMI/second 8 antenna ports, 4 < RI ≤ 7 9 NA NA NA PMI 8 antennaports, RI = 8 7 NA NA NA 4 antenna ports, RI = 1 8 NA NA NA 4 antennaports, 1 < RI ≤ 4 11 NA NA NA 3 RI 2/4 antenna ports, 2-layer spatial 11 1 1 multiplexing 8 antenna ports, 2-layer spatial 1 NA NA¹ NA¹multiplexing 1² 1² 4 antenna ports, 4-layer spatial 2 2 2 2 multiplexing8 antenna ports, 4-layer spatial 2 NA NA¹ NA¹ multiplexing 2² 2² 8-layerspatial multiplexing 3 NA NA¹ NA¹ 3² 3² 12/16/20/24/28/32 antenna ports,1 NA NA NA 2-layer spatial multiplexing 12/16/20/24/28/32 antenna ports,2 NA NA NA 4-layer spatial multiplexing 12/16/20/24/28/32 antenna ports,3 NA NA NA 8-layer spatial multiplexing 4 Wideband RI = 1 or RI > 1, noPMI/RI NA NA 4 4 CQI RI = 1, no PMI NA NA 4 4 RI > 1, no PMI NA NA 7 7 5RI/first PMI 8 antenna ports, 2-layer spatial 4 NA NA NA multiplexing 8antenna ports, 4 and 8-layer 5 spatial multiplexing 4 antenna ports,2-layer spatial 4 multiplexing 4 antenna ports, 4-layer spatial 5multiplexing 6 RI/PTI 8 antenna ports, 2-layer spatial NA 2 NA NAmultiplexing 8 antenna ports, 4-layer spatial NA 3 NA NA multiplexing 8antenna ports, 8-layer spatial NA 4 NA NA multiplexing 4 antenna ports,2-layer spatial NA 2 NA NA multiplexing 4 antenna ports, 4-layer spatialNA 3 NA NA multiplexing 7 CRI/RI 2-layer spatial multiplexing k + 1 k +1 k + 1 k + 1 4-layer spatial multiplexing k + 2 k + 2 k + 2 k + 28-layer spatial multiplexing k + 3 k + 3 k + 3 k + 3 8 CRI/RI/first2-layer spatial multiplexing k + 4 NA NA NA PMI 4 and 8-layer spatialmultiplexing k + 5 NA NA NA 9 CRI/RI/PTI 2-layer spatial multiplexing NAk + 2 NA NA 4-layer spatial multiplexing NA k + 3 NA NA 8-layer spatialmultiplexing NA k + 4 NA NA 10  CRI No PMI/RI NA NA k k 11  RI/RPI2-layer spatial multiplexing 3 NA NA NA 4-layer spatial multiplexing 4NA NA NA 8-layer spatial multiplexing 5 NA NA NA

Optionally, the access network device generates configuration signalingaccording to the determined configuration parameter of the periodicuplink information/signal.

In the operation 402, the access network device transmits configurationsignaling to a terminal, the configuration signaling containing theconfiguration parameter of the periodic uplink information/signal.

Optionally, the access network device transmits the determinedconfiguration signaling to the terminal through high-layer signaling, ortransmits the determined configuration signaling to the terminal throughPhysical Downlink Control Channel (PDCCH) signaling. The configurationsignaling transmitted by the access network device through thehigh-layer signaling is cell specific configuration signaling orterminal specific configuration signaling, and the high-layer signalingadopted by the access network device may be Layer-3 (L3) and Layer-2(L2) signaling, for example, Radio Resource Control (RRC) signaling.

In the operation 403, the terminal receives the configuration signalingtransmitted by the access network device.

Correspondingly, the terminal receives the configuration signalingtransmitted by the access network device, and obtains the configurationparameter of the periodic uplink information/signal in the configurationsignaling.

In the operation 404, the terminal determines a target transmission unitaccording to the configuration parameter.

Optionally, the terminal determines the target transmission unitaccording to the transmission period and the offset, or the terminaldetermines the target transmission unit according to the transmissionperiod, the offset and the physical resource indication.

In a schematic example, the terminal obtains the transmission period “2ms” and offset “3” in the configuration signaling according to thereceived configuration signaling, and then the terminal determines thetarget transmission unit for present transmission to be a “third”subframe in a radio frame.

In the operation 405, the access network device determines the targettransmission unit according to the configuration parameter.

Optionally, the access network device, after determining theconfiguration parameter of the periodic uplink information/signal in theoperation 401, determines the target transmission unit according to theconfiguration parameter. A related determination operation may refer tothe operation 404.

Optionally, the operation 405 may be executed concurrently with theoperation 402 or the operation 403 or the operation 404, which will notbe limited in the embodiment.

In the operation 406, the terminal transmits or cancels target periodicuplink information/signal according to the number of an uplink symbol inthe target transmission unit.

Optionally, the terminal determines whether the target transmission unitis required to transmit the target periodic uplink information/signal ornot according to the number of the uplink symbol in the targettransmission unit; if NOT required, the terminal cancels it, and ifrequired, the terminal determines a transmission manner corresponding tothe target transmission unit and transmits the target periodic uplinkinformation/signal to the access network device according to thetransmission manner.

Schematically, the number of the uplink symbol in the targettransmission unit ranges from 0 to 7.

Optionally, the target periodic uplink information/signal includesperiodic CSI, and when the terminal transmits the periodic CSI over aPUCCH according to the transmission period, an adopted PUCCH format isany one of PUCCH format 2, PUCCH format 2a and PUCCH format 2b.

In a schematic example, the configuration parameter received by theterminal includes: a transmission period “5 ms”, an offset “3”, aphysical resource indication “index A”, a CSI feedback mode “Type 10”and a transmission mode “Mode 4”, then the terminal determines a targettransmission unit B according to the transmission period “5 ms”, theoffset “3” and the physical resource indication “index A” and determinesthat the target periodic uplink information/signal is required to betransmitted according to the number of an uplink symbol in the targettransmission unit B, and the terminal transmits CRI information to theaccess network device every 5 ms according to a closed-loop spatialmultiplexing mode.

In the operation 407, the access network device receives or does notreceive the target periodic uplink information/signal according to thenumber of the uplink symbol in the target transmission unit.

Correspondingly, the access network device determines whether to receivethe target periodic uplink information/signal or not according to thenumber of the uplink symbol in the target transmission unit.

From the above, according to the embodiment of the disclosure, theterminal receives the configuration signaling transmitted by the accessnetwork device, determines the target transmission unit according to theconfiguration parameter in the configuration signaling and transmits orcancels the target periodic uplink information/signal according to thenumber of the uplink symbol in the target transmission unit. In such amanner, when the transmission unit configured to transmit the targetperiodic uplink information/signal has a dynamically changing framestructure, the terminal may determine whether to transmit or cancel thetarget periodic uplink information/signal according to the number of theuplink symbol in the target transmission unit, and responsive todetermining that the target periodic uplink information/signal isrequired to be sent, selects a transmission manner for the targetperiodic uplink information/signal and transmits the target periodicuplink information/signal according to the transmission manner.Therefore, a probability that the terminal effectively feeds back theperiodic uplink information/signal is improved.

For the operation 405, several possible schemes for transmittingperiodic uplink information/signal are provided in the disclosure,specifically as follows.

First Transmission Scheme for Periodic Uplink Information/Signal

When the target transmission unit is a normal uplink subframe or anormal uplink slot, a terminal transmits a target periodic uplinkinformation/signal in the target transmission unit according to theconfiguration parameter; and correspondingly, the access network devicereceives the target periodic uplink information/signal transmitted bythe terminal.

Optionally, the normal uplink subframe includes no downlink symbol,namely symbol types in the normal uplink subframe are all uplinksymbols; and the normal uplink slot includes no downlink symbol, namelysymbol types in the normal uplink slot are all uplink symbols. thenumber of an uplink symbol in the normal uplink subframe or the normaluplink slot is not limited in the embodiment.

Descriptions will be made below only with the condition that the targettransmission unit is a slot (the normal uplink slot includes 7 uplinksymbols) as an example.

In a schematic example, as shown in FIG. 5, the target transmission unitincludes 7 symbols (“0th” to “6th”), and the 7 symbols are all uplinksymbols 52, namely the target transmission unit is a normal uplink slot.Then, the terminal transmits the target periodic uplinkinformation/signal in the 7 uplink symbols 52 of the target transmissionunit according to the configuration parameter.

Second Transmission Scheme for Periodic Uplink Information/Signal

When the number of the uplink symbol in the target transmission unit ismore than or equal to a first threshold, the target periodic uplinkinformation/signal is transmitted over the target transmission unitaccording to the configuration parameter; and correspondingly, theaccess network device receives the target periodic uplinkinformation/signal transmitted by the terminal.

Optionally, the first threshold is a positive integer smaller than 7.Schematically, a value of the first threshold is 5.

In a schematic example, as shown in FIG. 6, the target transmission unitincludes 2 downlink symbols 52 and 5 uplink symbols 54, and when theterminal determines that the uplink symbol quantity “5” of the targettransmission unit is equal to the first threshold “5”, the terminaltransmits the target periodic uplink information/signal in the 5 uplinksymbols 54 of the target transmission unit according to theconfiguration parameter.

Third Transmission Scheme for Periodic Uplink Information/Signal

When the target transmission unit includes no uplink symbol, the targetperiodic uplink information/signal is cancelled; and correspondingly,the access network device does not receive the target periodic uplinkinformation/signal.

Optionally, cancelling the target periodic uplink information/signalrefers to that the terminal does not transmit the target periodic uplinkinformation/signal to the access network device. Optionally, theterminal further clears the target periodic uplink information/signalfrom a cache.

Fourth Transmission Scheme for Periodic Uplink Information/Signal

When the number of the uplink symbol in the target transmission unit islarger than 0 and smaller than a second threshold, the target periodicuplink information/signal is cancelled; and correspondingly, the accessnetwork device does not receive the target periodic uplinkinformation/signal.

Optionally, the second threshold is a positive integer smaller than 5.Schematically, a value of the second threshold is 4.

For example, the target transmission unit includes 3 uplink symbols, andwhen the terminal determines that the uplink symbol quantity “3” of thetarget transmission unit is larger than 0 and smaller than the secondthreshold “4”, the terminal cancels the target periodic uplinkinformation/signal.

Fifth Transmission Scheme for Periodic Uplink Information/Signal

When the target transmission unit includes no uplink symbol, a firstfirst-type transmission unit within a preset period after or from thetarget transmission unit is determined, and the target periodic uplinkinformation/signal is transmitted through at least one uplink symbol inthe first first-type transmission unit according to the configurationparameter; and correspondingly, the access network device receives thetarget periodic uplink information/signal transmitted by the terminal.

Optionally, transmission units have two types: first-type transmissionunits and second-type transmission units. The first-type transmissionunit includes any one of: a normal uplink subframe, a normal uplinkslot, a transmission unit of which an uplink symbol quantity is largerthan a fourth threshold, and a transmission unit of which an uplinksymbol quantity is equal to the fourth threshold. The second-typetransmission unit includes a transmission unit that is not a first-typetransmission unit. Schematically, the fourth threshold is a positiveinteger larger than 3.

Optionally, the preset period is pre-configured by the access networkapparatus or predefined in a protocol. Schematically, the preset periodis 3 ms.

In a schematic example, the preset period is 3 ms. As shown in FIG. 7,transmission units within 3 ms starting from the target transmissionunit A are sequentially the target transmission unit A, a transmissionunit B, a transmission unit C, a transmission unit D, a transmissionunit E and a transmission unit F. Both of the transmission unit A andthe transmission unit D include no uplink symbol, the transmission unitB is a normal uplink slot (including 7 uplink symbols), the transmissionunit C is a transmission unit of which an uplink symbol quantity isequal to the fourth threshold “4”, and both of the transmission unit Eand the transmission unit F are transmission units of which uplinksymbol quantities are smaller than the fourth threshold “4”respectively. Therefore, both of the transmission unit B and thetransmission unit C are first-type transmission units 72, and the targettransmission unit A, the transmission unit D, the transmission unit Eand the transmission unit F are second-type transmission units 74. Whenthe terminal determines that the target transmission unit A includes nouplink symbol, the terminal determines that the first first-typetransmission unit within 3 ms starting from the target transmission unitA is the transmission unit B. The terminal transmits the target periodicuplink information/signal in the 7 uplink symbols of the transmissionunit B according to the configuration parameter.

Sixth Transmission Scheme for Periodic Uplink Information/Signal

When the number of the uplink symbol in the target transmission unit islarger than 0 and smaller than a third threshold, the first first-typetransmission unit within the preset period from or after the targettransmission unit is determined, and the target periodic uplinkinformation/signal is transmitted through at least one uplink symbol ofthe first first-type transmission unit according to the configurationparameter.

For example, a value of the third threshold is 4, the targettransmission unit includes 3 uplink symbols, and when the terminaldetermines that the uplink symbol quantity “3” of the targettransmission unit is larger than 0 and smaller than the third threshold“4”, the terminal determines the first first-type transmission unitwithin the preset period from or after the target transmission unit andtransmits the target periodic uplink information/signal through at leastone uplink symbol of the first first-type transmission unit according tothe configuration parameter.

It is to be noted that related details about how the terminal determinesthe first first-type transmission unit and how to transmit the targetperiodic uplink information/signal may refer to related descriptions inthe fifth transmission scheme for periodic uplink information/signal andelaborations are omitted herein.

Seventh Transmission Scheme for Periodic Uplink Information/Signal

When the number of the uplink symbol in the target transmission unit islarger than 0 and smaller than a fifth threshold, an information subsetof the target periodic uplink information/signal is transmitted throughat least one uplink symbol in the target transmission unit according tothe configuration parameter.

Optionally, when the periodic uplink information/signal includes theperiodic CSI, the information subset includes at least one of thefollowing sub information: CRI information, RI information, wideband CQIinformation, wideband PMI information and first PMI information.

Optionally, the information subset further includes at least one of thefollowing sub information: sub-band CQI information, second PMIinformation and PTI information. The types of the sub information in theinformation subset are not limited in the embodiment.

For example, a value of the fifth threshold is 3, the targettransmission unit includes 2 uplink symbols, and when the terminaldetermines that the uplink symbol quantity “2” of the targettransmission unit is larger than 0 and smaller than the fifth threshold“3”, the terminal transmits the CRI information in the target periodicuplink information/signal through at least one uplink symbol of thetarget transmission unit according to the configuration parameter.

Eighth Transmission Scheme for Periodic Uplink Information/Signal

1: The terminal determines a time-frequency resource for transmittingthe target periodic uplink information/signal according to the number ofthe uplink symbol in the target transmission unit and the configurationparameter.

Since the number of the uplink symbol in the target transmission unitmay dynamically change, when the number of the uplink symbol in thetarget transmission unit is smaller than or larger than a predeterminedthreshold, the terminal may regulate the time-frequency resourceconfigured to transmit the target periodic uplink information/signal toensure that the terminal may transmit the target periodic uplinkinformation/signal on the time-frequency resource according to theconfiguration parameter, which avoids the fact that the time-frequencyresource is too small to transmit the target periodic uplinkinformation/signal and also avoids the resource waste caused by the factthat the time-frequency resource configured to transmit the targetperiodic uplink information/signal is too large.

Optionally, a normal time-frequency resource configured to transmit thetarget periodic uplink information/signal usually includes A*B ResourceElements (REs), and when the uplink symbol quantity C of the targettransmission unit (including C*D REs) is smaller than or larger than thepredetermined threshold, the terminal regulates the number ofsubcarriers occupied in the frequency domain to ensure that an absolutedifference value between the number of REs in the time-frequencyresource configured to transmit the target periodic uplinkinformation/signal and the number of the REs in the normaltime-frequency resource is smaller than a difference threshold.

In a possible implementation, the terminal pre-stores a mappingrelationship between an uplink symbol quantity and a time-frequencyresource amount. Optionally, the mapping relationship is predefined in acommunication protocol, and the mapping relationship is a mappingrelationship shown in Table 5. The time-frequency resource amount isA*B, and is configured to represent that the time-frequency resourceincludes A*B REs, namely the time-frequency resource includes A symbolsin the time domain and includes B subcarriers in the frequency domain.

TABLE 5 Uplink symbol quantity Time-frequency resource amount 1 1 * 84 22 * 42 3 3 * 28 4 4 * 21 5 5 * 17 6 6 * 14 7 7 * 12

For example, the configuration parameter includes the transmissionperiod “5 ms”, the offset “3” and the physical resource indication“index A”, and the target transmission unit B includes totally 6*12 REs,the uplink symbol quantity being 6 and the subcarrier amount being 12.On the basis of Table 5, the terminal determines that the amount oftime-frequency resources for transmitting the target periodic uplinkinformation/signal is 6*14 according to the uplink symbol quantity “6”of the target transmission unit B. That is, the terminal regulates thetime-frequency resource configured to transmit the target periodicuplink information/signal to be 6*14 REs.

It is to be noted that the mapping relationship shown in Table 5 is onlyschematic and the terminal may also pre-store a mapping relationshipbetween an uplink symbol quantity and a subcarrier amount. The mappingrelationship between the uplink symbol quantity and the time-frequencyresource amount or the subcarrier amount and a manner for setting themapping relationship are not limited in the embodiment.

In another possible implementation, the terminal calculates thetime-frequency resource for transmitting the target periodic uplinkinformation/signal through a preset formula according to theconfiguration parameter and the number of the uplink symbol in thetarget transmission unit.

For example, the configuration parameter includes the transmissionperiod “5 ms”, the offset “3” and the physical resource indication“index A”, and in the target transmission unit B, the uplink symbolquantity is 6 and the subcarrier amount is 12. The terminal calculatesthe time-frequency resource amount 84 (the corresponding subcarrieramount is 14) through the preset format according to the uplink symbolquantity “6” of the target transmission unit B, namely the terminaldetermines that the time-frequency resource configured to transmit thetarget periodic uplink information/signal is a time-frequency resourceS, the uplink symbol quantity being 6 and the subcarrier amount being 14in the time-frequency resource. 2: The terminal transmits the targetperiodic uplink information/signal on the time-frequency resourceaccording to the configuration parameter.

For example, the terminal transmits the target periodic uplinkinformation/signal on the time-frequency resource of which thetime-frequency resource amount is 6*14 every 5 ms.

Ninth Transmission Scheme for Periodic Uplink Information/Signal

1: The terminal determines the time-frequency resource for transmittingthe target periodic uplink information/signal according to the number ofan uplink symbol in the first first-type transmission unit andconfiguration information.

2: The terminal transmits the target periodic uplink information/signalon the time-frequency resource according to the configuration parameter.

It is to be understood that a difference between the ninth transmissionscheme and the eighth transmission scheme is that: the uplink symbol inthe eighth transmission scheme belongs to the “target transmission unit”and the uplink symbol in the ninth transmission scheme belongs to the“first-type transmission unit”. Related details may refer to relateddescriptions in the eighth transmission scheme and elaborations areomitted herein.

It is to be understood that, for the operation 406, the nine embodimentscorresponding to the nine transmission schemes for periodic uplinkinformation/signal are also applied to an access network device side.Related details may refer to related descriptions in the nineembodiments and elaborations are omitted herein.

It is to be noted that the thresholds (any one of the first threshold,the second threshold, the third threshold, the fourth threshold and thefifth threshold) involved in each embodiment are pre-configured by anaccess network device or predefined in a communication protocol. Adetermination manner and value of each threshold are not limited in theembodiment.

It is also to be noted that, in the nine embodiments, any twoembodiments may be combined for implementation, any three embodimentsmay be combined for implementation or n (n is a positive integer)embodiments may be combined for implementation, which is apparent tothose skilled in the art according to each embodiment. Manners forcombined implementation of the embodiments will not be repeatedlyelaborated one by one in the embodiment of the disclosure. The mannerfor combined implementation of the fifth embodiment and the ninthembodiment will be elaborated only with a specific schematic example,specifically as follows.

As shown in FIG. 8, when the terminal determines that the targettransmission unit A includes no uplink symbol, the terminal sequentiallyjudges whether a transmission unit that is a first-type transmissionunit exists within 3 ms from the target transmission unit A or not.Since the target transmission unit A includes no uplink symbol, theterminal determines that the target transmission unit A is not afirst-type transmission unit. Since the transmission unit B includes 1downlink symbol and 6 uplink symbols, the terminal determines that thetransmission unit B is the first first-type transmission unit accordingto the fact that the number of the uplink symbol in the transmissionunit B is equal to the fourth threshold “6”. The terminal calculates thetime-frequency resource 84 of the time-frequency resource S through thepreset formula according to the configuration information (thetransmission period “5 ms”, the offset “3” and the physical resourceindication “index A”) and the uplink symbol quantity “6” of thetransmission unit B, namely the terminal determines that thetime-frequency resource configured to transmit the target periodicuplink information/signal is the time-frequency resource S (including 84REs), the number of uplink symbols occupied by the time-frequencyresource S in the time domain being 6 and the number of subcarriersoccupied in the frequency domain being 14. The configuration parameterfurther includes a CSI feedback mode “Type 10” and a transmission mode“Mode 4”. Therefore, the terminal determines that the target periodicuplink information/signal is required to be transmitted according to theconfiguration parameter and transmits the CRI information on thetime-frequency resource S every 5 ms according to the closed-loopspatial multiplexing mode.

From the above, according to the embodiments of the disclosure, aterminal receives configuration signaling from an access network device,determines a target transmission unit according to a configurationparameter in the configuration signaling and transmits or cancels thetarget periodic uplink information/signal according to the number of anuplink symbol in the target transmission unit. In such a manner, whenthe transmission unit configured to transmit the target periodic uplinkinformation/signal has a dynamically changing frame structure, theterminal may determine whether to transmit or cancel the target periodicuplink information/signal according to the number of the uplink symbolin the target transmission unit, and responsive to determining that thetarget periodic uplink information/signal is required to be sent,selects a transmission manner for the target periodic uplinkinformation/signal and transmits the target periodic uplinkinformation/signal according to the transmission manner. Therefore, aprobability that the terminal effectively feeds back the periodic uplinkinformation/signal is improved.

According to the embodiment of the disclosure, when the targettransmission unit includes no uplink symbol or the uplink symbolquantity is larger than 0 and smaller than the third threshold, thefirst first-type transmission unit within the preset period from orafter the target transmission unit is determined, and the targetperiodic uplink information/signal is transmitted through at least oneuplink symbol of the first first-type transmission unit according to theconfiguration parameter. In such a manner, when the target transmissionunit may not be configured to transmit the target periodic uplinkinformation/signal, the terminal may transmit the target periodic uplinkinformation/signal through at least one uplink symbol of the determinedfirst first-type transmission unit. Therefore, the condition that thetarget periodic uplink information/signal is cancelled is avoided, andthe access network device may timely obtain the target periodic uplinkinformation/signal fed back by the terminal.

According to the embodiments of the disclosure, when the number of theuplink symbol in the target transmission unit is larger than 0 andsmaller than the fifth threshold, the information subset of the targetperiodic uplink information/signal is transmitted through at least oneuplink symbol of the target transmission unit according to theconfiguration parameter. Since the information subset includes at leastone of the CRI information, the RI information, the CQI information, thewideband PMI information and the first PMI information, the terminalstill can transmit part of information related to the target periodicuplink information/signal to the access network device, thereby avoidingthe resource waste caused by the fact that the number of the uplinksymbol in the target transmission unit is too small and thus the targetperiodic uplink information/signal is cancelled.

The below are the apparatus embodiments of the embodiments of thedisclosure. and the parts which are not elaborated in the apparatusembodiments may refer to technical details disclosed in the methodembodiments.

Referring to FIG. 9, a structure diagram of a periodic uplinkinformation/signal transmission apparatus according to an exemplaryembodiment of the disclosure is shown. The periodic uplinkinformation/signal transmission apparatus may be implemented into all orpart of a terminal through software, hardware and a combination of thetwo. The periodic uplink information/signal transmission apparatusincludes a receiving unit 910, a determination unit 920 and aTransmitting unit 930.

The receiving unit 910 is configured to execute functions of theoperation 403 and at least one other explicit or implicit receivingoperation.

The determination unit 920 is configured to execute functions of theoperation 404 and at least one other explicit or implicit determinationoperation.

The Transmitting unit 930 is configured to execute functions of theoperation 406 and at least one other explicit or implicit transmissionoperation.

Referring to FIG. 10, a structure diagram of a periodic uplinkinformation/signal transmission apparatus according to an exemplaryembodiment of the disclosure is shown. The periodic uplinkinformation/signal transmission apparatus may be implemented into all orpart of an access network device through software, hardware and acombination of the two. The periodic uplink information/signaltransmission apparatus includes a Transmitting unit 1010, adetermination unit 1020 and a receiving unit 1030.

The Transmitting unit 1010 is configured to execute functions of theoperation 402 and at least one other explicit or implicit transmissionoperation.

The determination unit 1020 is configured to execute functions of theoperation 405 and at least one other explicit or implicit determinationoperation.

The receiving unit 1030 is configured to execute functions of theoperation 407 and at least one other explicit or implicit receivingoperation.

An embodiment of the disclosure also provides an uplink data system,which may include a terminal and an access network device.

The terminal may include the periodic uplink information/signaltransmission apparatus provided in FIG. 9, and the access network devicemay include the periodic uplink information/signal transmissionapparatus provided in FIG. 10.

Or, the terminal may be the terminal provided in FIG. 3A, and the accessnetwork device may be the access network device provided in FIG. 3B.

Those skilled in the art may realize that, in one or more abovementionedexamples, the functions described in the embodiments of the disclosuremay be realized through hardware, software, firmware or any combinationthereof. When being realized through the software, these functions maybe stored in a computer-readable medium or transmitted as one or moreinstructions or codes in the computer-readable medium. Thecomputer-readable medium includes a computer storage medium and acommunication medium, and the communication medium includes any mediumfor transmitting a computer program from one place to another place. Thestorage medium may be any available medium accessible for a universal ordedicated computer.

The above are only the preferred embodiments of the disclosure and notintended to limit the disclosure. Any modifications, equivalentreplacements, improvements and the like made within the spirit andprinciple of the disclosure shall fall within the scope of protection ofthe disclosure.

The invention claimed is:
 1. A method for transmitting periodic uplinkinformation/signal, comprising: receiving configuration signalingtransmitted by an access network device, the configuration signalingcontaining a configuration parameter of periodic uplinkinformation/signal; determining a target transmission unit according tothe configuration parameter; and transmitting or cancelling targetperiodic uplink information/signal according to the number of an uplinksymbol in the target transmission unit, wherein transmitting orcancelling the target periodic uplink information/signal according tothe number of the uplink symbol in the target transmission unitcomprises: when the number of the uplink symbol in the targettransmission unit is smaller than a second threshold, cancelling thetarget periodic uplink information/signal.
 2. The method of claim 1,wherein the configuration parameter comprises at least one of: atransmission period, an offset, a CSI feedback mode, a transmission modeor a physical resource indication.
 3. The method of claim 1, wherein thetarget transmission unit is a subframe or a slot.
 4. The method of claim1, wherein transmitting or cancelling the target periodic uplinkinformation/signal according to the number of the uplink symbol in thetarget transmission unit comprises: when the number of the uplink symbolin the target transmission unit is larger than 0 and smaller than asecond threshold, cancelling the target periodic uplinkinformation/signal.
 5. The method of claim 1, wherein cancelling thetarget periodic uplink information/signal comprises: not transmittingthe target periodic uplink information/signal to the access networkdevice.
 6. A method for transmitting periodic uplink information/signal,comprising: transmitting configuration signaling to a terminal, theconfiguration signaling containing a configuration parameter of periodicuplink information/signal; determining a target transmission unitaccording to the configuration parameter; and receiving or not receivingtarget periodic uplink information/signal according to the number of anuplink symbol in the target transmission unit, wherein receiving or notreceiving the target periodic uplink information/signal according to thenumber of the uplink symbol in the target transmission unit comprises:when the number of the uplink symbol in the target transmission unit issmaller than a second threshold, not receiving the target periodicuplink information/signal.
 7. The method of claim 6, wherein theconfiguration parameter comprises at least one of: a transmissionperiod, an offset, a CSI feedback mode, a transmission mode, or aphysical resource indication.
 8. The method of claim 6, whereinreceiving or not receiving the target periodic uplink information/signalaccording to the number of the uplink symbol in the target transmissionunit comprises: when the number of the uplink symbol in the targettransmission unit is larger than 0 and smaller than a second threshold,not receiving the target periodic uplink information/signal.
 9. Anapparatus comprising a processor, a transmitter and a receiver, whereinthe processor is configured to control the receiver to receiveconfiguration signaling transmitted by an access network device, theconfiguration signaling containing a configuration parameter of periodicuplink information/signal; the processor is configured to determine atarget transmission unit according to the configuration parameter; andthe processor is further configured to control the transmitter totransmit or cancel target periodic uplink information/signal accordingto the number of an uplink symbol in the target transmission unit,wherein the transmitter is further configured to: when the number of theuplink symbol in the target transmission unit is smaller than a secondthreshold, cancel the target periodic uplink information/signal.
 10. Theapparatus of claim 9, wherein the configuration parameter comprises atleast one of: a transmission period, an offset, a CSI feedback mode, atransmission mode or a physical resource indication.
 11. The apparatusof claim 9, wherein the transmitter is further configured to: when thenumber of the uplink symbol in the target transmission unit is largerthan 0 and smaller than a second threshold, cancel the target periodicuplink information/signal.
 12. The apparatus of claim 9, wherein thetarget transmission unit is a subframe or a slot.
 13. The apparatus ofclaim 9, wherein the processor is further configured to: control thetransceiver not to transmit the target periodic uplinkinformation/signal to the access network device.
 14. An apparatus fortransmitting periodic uplink information/signal, comprising a processor,a transmitter and a receiver, wherein: the transmitter, configured totransmit configuration signaling to a terminal, the configurationsignaling containing a configuration parameter of periodic uplinkinformation/signal; the processor, configured to determine a targettransmission unit according to the configuration parameter; and thereceiver, configured to receive or not receive target periodic uplinkinformation/signal according to the number of an uplink symbol in thetarget transmission unit, wherein the processor is further configuredto: when the number of the uplink symbol in the target transmission unitis smaller than a second threshold, control the receiver to not receivethe target periodic uplink information/signal.
 15. The apparatus ofclaim 14, wherein the configuration parameter comprises at least one of:a transmission period, an offset, a CSI feedback mode, a transmissionmode or a physical resource indication.
 16. The apparatus of claim 14,wherein the processor is further configured to: when the number of theuplink symbol in the target transmission unit is larger than 0 andsmaller than a second threshold, control the receiver to not receive thetarget periodic uplink information/signal.